[Ruby and Python are not] equipped with better libraries I disagree strongly here; Perl has a lot of little utility libraries (LWP, etc) but lacks the mature

[Ruby and Python are not] equipped with better libraries I disagree strongly here; Perl has a lot of little utility libraries (LWP, etc) but lacks the mature and amazing frameworks like Rails and Django -- and since you can use the database components separately (at least in Rails 3's case), it's lightyears ahead of Perl's DBI. The whole point of Ruby (I can't personally speak for Python) is not just that its grammar is better-constructed and solves problems better. It's also the libraries that make me wildly productive, in a way that Perl has never allowed me to be.